<template>
  <transition name="slide">
    <div
      v-show="showFlag"
      class="food"
      ref="food"
    >
      <div class="food-content">
        <div class="image-header">
          <img :src="food.image">
          <div class="back" @click="hide">
            <i class="font_family icon-arrow_lift"></i>
          </div>
        </div>
        <div class="content">
          <h2 class="title">{{food.name}}</h2>
          <div class="detail">
            <span class="sell-count">
              月售{{food.sellCount}}份
            </span>
            <span class="rating">
              好评率{{food.rating}}%
            </span>
          </div>
          <div class="price">
            <span class="now">￥{{food.price}}</span>
            <span class="old" v-show="food.oldPrice">￥{{food.oldPrice}}</span>
          </div>
          <div class="cartcontrol-wrapper">
            <cartcontrol :food="food"></cartcontrol>
          </div>
          <fade-animation>
            <div class="buy" v-show="!food.count || food.count==0"
              @click.stop.prevent="addFirst"
            >
              加入购物车
            </div>
          </fade-animation>
        </div>
        <split v-if="food.info"></split>
        <div class="info" v-if="food.info">
          <h2 class="title">商品信息</h2>
          <p class="text">
            {{food.info}}
          </p>
        </div>
        <split v-if="food.info"></split>
        <div class="rating">
          <h2 class="title">商品评价</h2>
          <ratingselect
            :select-type="selectType"
            :only-content="onlyContent"
            :desc="desc"
            :ratings="food.ratings"
            @ratingtypeSelect="handleRratingtypeSelect"
            @contentToggle="handleContentToggle"
          >
          </ratingselect>
          <div class="rating-wrapper">
            <ul
              v-show="isShowList"
            >
              <li
                v-for="(rating, index) in food.ratings"
                :key="index"
                class="rating-item border-1px"
                v-show="needShow(rating.rateType, rating.text)"
              >
                <div class="user">
                  <span class="name">{{rating.username}}</span>
                  <img :src="rating.avatar" width="12" height="12" class="avatar">
                </div>
                <div class="time">{{rating.rateTime | formatData}}</div>
                <p class="text">
                  <span
                    class="font_family" :class="{
                      'icon-thumb_up':rating.rateType===0,
                      'icon-thumb_down':rating.rateType===1
                    }"
                  >
                  </span>
                    {{rating.text}}
                </p>
              </li>
            </ul>
            <div
              class="no-rating"
              v-show="isShowEmpty"
            >
              没有内容可显示
            </div>
          </div>
        </div>
      </div>
    </div>
  </transition>
</template>

<script>
import Vue from 'vue'
import BScroll from 'better-scroll'
import {myformatDate} from '../../common/js/date'
import cartcontrol from 'components/cartcontrol/cartcontrol'
import FadeAnimation from 'components/fade/Fade'
import Split from 'components/split/split'
import Ratingselect from 'components/ratingselect/ratingselect'

// const POSITIVE = 0
// const NEGATIVE = 1
const ALL = 2

export default {
  name: 'food',
  props: {
    food: {
      type: Object
    }
  },
  data () {
    return {
      showFlag: false,
      selectType: ALL,
      onlyContent: true,
      desc: {
        all: '全部',
        positive: '推荐',
        negative: '吐槽'
      }
    }
  },
  computed: {
    isShowList () {
      if (this.food) {
        return this.food.ratings
      }
    },
    isShowEmpty () {
      if (this.food) {
        return !this.food.ratings
      }
    }
  },
  methods: {
    handleContentToggle (content) {
      this.onlyContent = content
      this.$nextTick(() => {
        this.scroll.refresh()
      })
    },
    handleRratingtypeSelect (type) {
      this.selectType = type
      this.$nextTick(() => {
        this.scroll.refresh()
      })
    },
    show () {
      this.showFlag = true
      this.selectType = ALL
      this.onlyContent = true
      this._initScroll()
    },
    hide () {
      this.showFlag = false
    },
    addFirst (event) {
      if (event._contructed) {
        return
      }
      this.$emit('cartadd', event.target)
      Vue.set(this.food, 'count', 1)
    },
    _initScroll () {
      this.$nextTick(() => {
        if (!this.scroll) {
          this.scroll = new BScroll(this.$refs.food, {
            click: true
          })
        } else {
          this.scroll.refresh()
        }
      })
    },
    needShow (type, text) {
      if (this.onlyContent && !text) {
        return false
      }
      if (this.selectType === ALL) {
        return true
      } else {
        return type === this.selectType
      }
    }
  },
  filters: {
    formatData (time) {
      let date = new Date(time)
      return myformatDate(date, 'yyyy-MM-dd hh:mm')
    }
  },
  components: {
    cartcontrol,
    FadeAnimation,
    Split,
    Ratingselect
  }
}
</script>

<style scoped lang="stylus">
  @import '../../common/stylus/mixin.styl'
  .food
    position: fixed
    left: 0
    top: 0
    bottom: 48px
    z-index: 30
    width: 100%
    background: #fff
    &.slide-enter, &.slide-leave-to
      left: 100%
    &.slide-enter-active, &.slide-leave-active
      transition: all .5s
    .image-header
      position: relative
      width: 100%
      height: 0
      padding-bottom: 100%
      img
        position: absolute
        top: 0
        left: 0
        width: 100%
        height: 100%
      .back
        position: absolute
        top: 10px
        left: 0
        .icon-arrow_lift
          display: block
          padding: 10px
          font-size: 20px
          color: #fff
    .content
      padding: 18px
      position: relative
      .title
        line-height: 14px
        margin-bottom: 8px
        font-size: 14px
        font-weight: 700
        color: rgb(7,17,27)
      .detail
        margin-bottom: 18px
        height: 10px
        line-height: 10px
        font-size: 0
        .sell-count, .rating
          font-size: 10px
          color: rgb(147,153,159)
        .sell-count
          margin-right: 12px
      .price
        font-weight: 700
        line-height: 24px
        font-size: 0
        .now
          margin-right: 8px
          font-size: 10px
          color: rgb(240,20,20)
        .old
          text-decoration: line-through
          font-size: 10px
          color: rgb(147,153,159)
      .cartcontrol-wrapper
        position: absolute
        right: 12px
        bottom: 12px
      .buy
        position: absolute
        right: 18px
        bottom: 18px
        z-index: 10
        line-height: 24px
        height: 24px
        padding: 0 12px
        box-sizing: border-box
        font-size: 10px
        border-radius: 12px
        color: #fff
        background: rgb(0,160,220)
    .info
      padding: 18px
      .title
        line-height: 14px
        margin-bottom: 6px
        font-size: 14px
        color: rgb(7,17,27)
      .text
        line-height: 24px
        padding: 0 8px
        font-size: 12px
        color: rgb(77,85,95)
    .rating
      padding-top: 18px
      .title
        line-height: 14px
        margin-left: 18px
        font-size: 14px
        color: rgb(7,17,27)
      .rating-wrapper
        padding: 0 18px
        .rating-item
          position: relative
          padding: 16px 0
          border-1px(rgba(7,17,27,.1))
          .user
            position: absolute
            right: 0
            top: 16px
            font-size: 0
            line-height: 12px
            .name
              font-size: 10px
              display: inline-block
              vertical-align: top
              color: rgb(147,153,159)
              margin-right: 6px
            .avatar
              border-radius: 50%
            .time
              line-height: 12px
              font-size: 10px
              color: rgb(147,153,159)
              margin-right: 6px
          .text
            line-height: 16px
            font-size: 12px
            color: rgb(7,17,27)
            .icon-thumb_up, .icon-thumb_down
              line-height: 16px
              margin-right: 4px
              font-size: 12px
            .icon-thumb_up
              color: rgb(0,160,220)
            .icon-thumb_down
              color: rgb(147,153,159)
        .no-rating
          padding: 16px 0
          font-size: 12px
          color: rgb(147,154,159)
</style>
